Energy in Ecosystems Review

There is a coastal marine ecosystem that you are studying. Which of the following would be included in the "ecosystem" level of ecology?

• An otter

• Kelp

• The ocean's temperature

• The rocky coast along the beach

A set of interacting components that allows both energy and chemical substances to transfer in and out is known as a ___________ system.

• Open

• Wide

• Closed

• Dynamic

A mesocosm is a bottle or jar that is filled with rocks, soil, sand, water, a few plants, algae, and a decomposer. What is the main source of energy for the ecosystem, and is it a closed or open system?

• Main energy source: phosphorous
  Open system

• Main energy source: Methane
  Open system

• Main energy source:

  phosphorus
  Closed System

• Main energy source: light
  Closed System

What are the three types of species that go through photosynthesis? Select all that apply.

• Cyanobacteria

• Eukaryotic Algae

• Fungi

• Plants

What are the products of photosynthesis? Select all that apply.

• Carbon dioxide

• Water

• Oxygen

• Glucose

Which of the following is a PRODUCER?

• Fungi
• Deer
• Bacteria
• Plant

The electromagnetic spectrum includes things like radio waves, x-rays, gamma rays, microwaves, and visible light. These are distinguished from each other by how wide the wavelength is. Visible light, specifically, is found between 400 and 700 nanometers. What color is found at 525 nanometers? Use the image to help you.

• Blue

• Green

• Yellow

• Red

What wavelengths are not able to penetrate deeper into water?

• Shorter wavelengths, like red light

• Shorter wavelengths, like violet light

• Longer wavelengths, like violet light

• Longer wavelengths, like red light

How deep does light typically go in COASTAL waters?

• About 100 meters (328 feet)
• About 20 meters (65 feet)
• About 50 meters (164 feet)
• About 5 meters (16 feet)

Why does light travel deeper into the open ocean when compared to coastal water?

• Light is absorbed more in the open ocean because of its depth.
• Light travels deeper in the open ocean due to lower turbidity and fewer particles compared to coastal waters.
• Light travels deeper in coastal waters due to higher salinity.
• Light travels deeper in coastal waters due to increased sunlight exposure.